Synthesis, Crystal Structure, and Magnetic Properties of {[Cu(oxbe)]Mn(H<sub>2</sub>O)[Cu(oxbe)(DMF)]}<i><sub>n</sub></i>·<i>n</i>DMF·<i>n</i>H<sub>2</sub>O: From Dissymmetrical Mononuclear Entities to a 3D Heterometallic Supramolecular Coordination Polymer
作者:Shuang-Quan Zang、Ruo-Jie Tao、Qing-Lun Wang、Ning-Hai Hu、Yan-Xiang Cheng、Jing-Yang Niu、Dai-Zheng Liao
DOI:10.1021/ic020491j
日期:2003.2.1
Self-assembly of the building block [Cu(oxbe)](-) with Mn(II) led to a novel coordination polymer ([Cu(oxbe)]Mn(H(2)O)[Cu(oxbe)(DMF)])n).nDMF.nH(2)O, where H(3)oxbe is a new dissymmetrical ligand N-benzoato-N'-(2-aminoethyl)oxamido and DMF = dimethylformamide. The crystal forms in the triclinic system, space group Ponemacr;, with a = 9.260(4) A, b = 12.833(5) A, c = 15.274(6) A, alpha = 76.18(3) degrees
自组装基团[Cu(oxbe)](-)与Mn(II)导致了新型配位聚合物([Cu(oxbe)] Mn(H(2)O)[Cu(oxbe)(DMF) ])n).nDMF.nH(2)O,其中H(3)oxbe是新的不对称配体N-苯甲酰基-N'-(2-氨基乙基)草酰胺基,DMF =二甲基甲酰胺。晶体形成于三斜晶系空间群Ponemacr;中,a = 9.260(4)A,b = 12.833(5)A,c = 15.274(6)A,alpha = 76.18(3)度,beta = 82.7( 3)度,γ= 82.31(3)度,Z =2。标题化合物的晶体结构表明,二维双金属层由连接在一起的Cu(II)Mn(II)Cu(II)链构成通过羧酸桥键和氢键有助于产生新颖的三维通道状结构。通过哈密顿量H = -2JS(Mn)(S(Cu1)+ S(Cu2))分析磁化率测量值(5-300 K),